91 3.0 V6 help

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91 3.0 V6 help #796910 03/14/07 03:38 AM

Joined: Mar 2007

Posts: 6

Black Hills

fringefan

Need a Spot

Been reading some post on here about this engine and it was posted that it is upgradable to a 3.4 v6, how tuff is it and is it worth it? My 91 is using some oil and the oil pressue has been dropping so I have added a heavier weight oil to compensate. I love the truck but have been thinking about getting it rebuilt or buying a rebuilt motor online for around 1800; what are your thoughts?

Re: 91 3.0 V6 help [Re: fringefan] #796911 03/14/07 03:45 AM

Joined: Oct 2002

Posts: 15,887

Fairbanks, Alaska

kewlynx

Toyota & Classifieds Moderator

Welcome to the board; nuther new gent asked the very same q, so here's your answers, so you can get a feel for the site <img src="/forums/images/graemlins/cyclops.gif" alt="" />

LINKY
It's not entirely a plug-n-play; for $1800, you could go either way with the rebuild or the swap. Key is getting a sound donor.

I think Kutter still might have his 3.0 laying around too; your other option. <img src="/forums/images/graemlins/wink.gif" alt="" />

http://www.walkablecommunities.org/

Democracy is two wolves and a lamb voting on what to have for dinner. Liberty is a well-armed lamb contesting the vote.

**ubi apis- ibi salus**

Re: 91 3.0 V6 help [Re: kewlynx] #796912 03/14/07 11:37 PM

Joined: Mar 2007

Posts: 6

Black Hills

fringefan

Need a Spot

Thanks for the links.
Is the low oil pressure at idle something I should worry about or is it common for the oil pump or sending unit to go bad.

Re: 91 3.0 V6 help [Re: fringefan] #796913 03/15/07 02:02 AM

Joined: Oct 2002

Posts: 15,887

Fairbanks, Alaska

kewlynx

Toyota & Classifieds Moderator

I don't know the idle spec for the 3.0 off the top of my head; we've got an FSM sticky'd here for a 93 that should give you the numbers. A compression check and a leakdown check wouldn't hurt either before you go arbitrarily throwing parts at it.

http://www.walkablecommunities.org/

Democracy is two wolves and a lamb voting on what to have for dinner. Liberty is a well-armed lamb contesting the vote.

**ubi apis- ibi salus**

Re: 91 3.0 V6 help [Re: kewlynx] #796914 03/16/07 03:15 AM

Joined: Nov 2004

Posts: 92

Hilliard, FL

Smoke

Getting the Wheeling Fever

4.3 psi at idle.

94 P/U Ex-Cab 3.0 Automatic 4X4

Re: 91 3.0 V6 help [Re: Smoke] #796915 03/16/07 07:47 PM

Joined: Oct 2006

Posts: 469

Longmont, CO

IceBlueT

Mudrunner

i think thats a little low. when i put my perma cool remote filter on, i thought i was having problems. i checked the recomended pressure readings on our mitchell computer system at school, and it suggested anywhere from 6-10 psi at idle. i dont think its so low it'll hurt anything, but thats just me.

formerly 277000_yota
Old enough to know better, but still to damn arrogant to care...
]www.cardomain.com/ride/2614269
'90 'Yota 4X4 (10/31/05-09/10/08 R.I.P)
'98 'Yota t-100. 3.4, 5 sp. 4x4, 2 in. Toytec with BFG A/T 265/70R16s

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